The Power Of Un is a really good. It's about a kid that has bad luck. One day a kid was lost in the woods and found a cool gaget called The Power of Un. He didn't know how to use it but he figured it out. He used it to go to the Carnival. He wants to go on a ride but his sister can't so he finds his friend that babysits her. When he was getting on his sister ran away and the girl ran after her but it was to late and his sister got ran over. He used the Power of Un and undid it but...I'll stop here. I know you'll really like this book.
-Devin